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Date:      Sun, 13 Feb 2000 15:16:50 +1030
From:      Greg Lehey <grog@lemis.com>
To:        Christoph Kukulies <kuku@gilberto.physik.RWTH-Aachen.DE>
Cc:        hackers@FreeBSD.ORG
Subject:   Re: bonnie still trustable?
Message-ID:  <20000213151650.A97412@freebie.lemis.com>
In-Reply-To: <200002110949.KAA14176@gil.physik.rwth-aachen.de>
References:  <200002110949.KAA14176@gil.physik.rwth-aachen.de>

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On Friday, 11 February 2000 at 10:49:24 +0100, Christoph Kukulies wrote:
> PIII/500, 128 MB
>
> I'm wondering if this is trustable:
>
>> bonnie -s 400
> File './Bonnie.14321', size: 419430400
> Writing with putc()...done
> Rewriting...done
> Writing intelligently...done
> Reading with getc()...done
> Reading intelligently...done
> Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
>               -------Sequential Output-------- ---Sequential Input-- --Random--
>               -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
> Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec %CPU
>           400 20015 73.7 18369 22.9  6750 12.6 22308 81.5 22467 26.0  93.8  1.0
>                                      ^^^^
> ?
>
>
> wdc0 at 0x1f0-0x1f7 irq 14 flags 0xa0ff on isa
> wdc0: unit 0 (wd0): <IBM-DPTA-372050>, DMA, 32-bit, multi-block-16
> wd0: 19574MB (40088160 sectors), 39770 cyls, 16 heads, 63 S/T, 512 B/S

There are lies, damn lies, and statistics.  I'm sure that the results
mean something; the real question is, what do you want them to mean?

If you're trying to measure the storage device, rawio (Ports
Collection) is a much better choice.

Greg
--
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